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Editor crash when opening a project.

Hi, I build UE 4.5.1 from github. I'm on Fedora 20 x86_64. clang 3.4 GC : GTX 560 NVIDIA Driver Version: 340.32 I built it in debug mod because it crash in multicore mod if not in debug(just like on Arch Linux I think). The editor start and if I create a new project(then it load it) or load an existing one the editor crash. Here is th important log. I got a bunch of those

[2014.10.28-21.34.12:383][ 2]LogRHI:Warning: [API][Performance][Medium][131186] Buffer performance warning: Buffer object 2167 (bound to GL_PIXEL_UNPACK_BUFFER_ARB, usage hint is GL_STATIC_DRAW) is being copied/moved from VIDEO memory to HOST memory.

And sometime this

[2014.10.28-21.32.29:786][652]LogRHI:Warning: [API][Performance][Medium][131186] Buffer performance warning: Buffer object 1091 (bound to GL_PIXEL_UNPACK_BUFFER_ARB, usage hint is GL_STATIC_DRAW) is being copied/moved from VIDEO memory to DMA CACHED memory.

or this

[2014.10.28-21.32.24:915][240]LogRHI:Warning: [API][Performance][Medium][131218] Program/shader state performance warning: Fragment Shader is going to be recompiled because the shader key based on GL state mismatches.

I got this too

[2014.10.28-21.32.28:896][650]LogJson:Error: Json Value of type 'Null' used as a 'String'.

And the most important I think.

[2014.10.28-21.34.12:392][ 2]LogRenderer:Warning: Reallocating scene render targets to support 1136x920.

Fatal error: [File:/home/francis/GitHub/UnrealEngine/Engine/Source/Runtime/OpenGLDrv/Privat/OpenGLDevice.cpp[Line: 295]

[API][Error][High][1280] GL_INVALID_ENUM error generated. is not a valid polygon mode. Signal 11 caught.

[2014.10.28-21.34.12:553][ 2]LogLinux:Error: appError called: [API][Error][High][1280] GL_INVALID_ENUM error generated. is not a valid polygon mode.

EngineCrashHandler: Signal=11

[2014.10.28-21.34.12:952][ 2]LogCrashTracker:

[2014.10.28-21.34.12:952][ 2]LogLinux: === Critical error: ===

Unhandled Exception: SIGSEGV: invalid attempt to access memory at address 0x00000003

[2014.10.28-21.34.12:953][ 2]LogLinux: [API][Error][High][1280] GL_INVALID_ENUM error generated. is not a valid polygon mode.

[Callstack] 02 0x00007ffff70d6b33 ReportCrash(FLinuxCrashContext const&)

[Callstack] 03 0x000000000045bae8 EngineCrashHandler(FGenericCrashContext const&) [/home/francis/GitHub/UnrealEngine/Engine/Intermediate/Build/Linux/x86_64-unknown-linux-gnu/UE4Editor/Debug/Launch/Module.Launch.cpp, line 67]

[Callstack] 04 0x00007ffff70ddec3 PlatformCrashHandler(int, siginfo_t*, void*)

[Callstack] 05 0x00007ffff7bcf6d0 /lib64/libpthread.so.0(+0xf6d0) [0x7ffff7bcf6d0]

[Callstack] 06 0x00007ffff70de8d5 FOutputDeviceLinuxError::Serialize(wchar_t const*, ELogVerbosity::Type, FName const&)

[Callstack] 07 0x00007ffff72845f8 FOutputDevice::Log(FName const&, ELogVerbosity::Type, wchar_t const*)

[Callstack] 08 0x00007ffff7246030 FMsg::Logf(char const*, int, FName const&, ELogVerbosity::Type, wchar_t const*, ...)

I ran this one with gdb. But did not see anything worthy.

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asked Oct 28 '14 at 10:07 PM in Bug Reports

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RedFruitZ
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1 answer: sort voted first

To begin with, you must use Clang 3.3 or 3.5 to compile, as 3.4 causes all kinds of problems.

I suggest you upgrade/downgrade, recompile then see what happens. There's no point troubleshooting anything else until Clang version is corrected.

CentOS instructions should suffice for Fedora as well: https://wiki.unrealengine.com/Building_On_Centos

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answered Oct 28 '14 at 10:18 PM

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amigo
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